OT-2026-000027020
Publication integrity record
Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained blow-off before set-down, on a tool changer
This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000027020) never changes.
Identity and time
| Publication number | OT-2026-000027020 · never reused |
|---|---|
| Internal UUID | 01a0ae72-3453-78ee-934b-2bfccbde1b4d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:18:35.358864Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000027020 |
| Status | PUBLIC |
Content hashes
| Canonical text | 77f76ad6acd8e354ea074e402247058d9b88c265270c82e882250b8c0552a210 |
|---|---|
| Markdown | ea1f3c090ccd0fccf9d9558aa60fc1140adb45edcbc63e998937d0639d903b87 |
| Publication page | 33396254482c52a5ebb3f54a8eb8bf42a027e21dba39cc65c7f6cfb8de9e0f07 |
| Manifest | dfd5bf1eecc2b8869be6af6bc7acd337a251ab83246b5363a23759c956ae7152 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | KkJWVRg4bQiclTNBYi12g7FCsMuM6kcF8ubt/FfD0q3WM8ugIwT0dLSYTIw2YbodSqWxBh2qOs8hbbUJtYF8Aw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-10-26T04:23:24.371934Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020observed 33396254482c52a5ebb3f54a8eb8bf42...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-26T04:23:24.357196Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020/manifest.jsonobserved dfd5bf1eecc2b8869be6af6bc7acd337...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-26T04:23:24.334503Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020/publication.mdobserved ea1f3c090ccd0fccf9d9558aa60fc114...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-26T04:23:24.312993Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020/publication.txtobserved 77f76ad6acd8e354ea074e402247058d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-08T20:41:33.347224Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020observed 33396254482c52a5ebb3f54a8eb8bf42...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T20:41:33.273892Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020/manifest.jsonobserved dfd5bf1eecc2b8869be6af6bc7acd337...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T20:41:33.159517Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020/publication.mdobserved ea1f3c090ccd0fccf9d9558aa60fc114...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T20:41:32.975901Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000027020/publication.txtobserved 77f76ad6acd8e354ea074e402247058d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.
Independent archive
| External archive | Pending Canonical URLs are submitted to an independent archive in batches. |
|---|
A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.
Third-party custody
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|